Scale-gage for setting knives &amp;c.



Patented May l5, I900.

C. J. QUINN.

SCALE GAGE FDR SETTING KNIVES, 81.0.

(Application filed Oct. 28, 1899.)

(N0 Model.)

I O H a U l 1 12 uonms PETERS c9, PucYoun-m. WASHINDTDN, n. cy

Nrrnn S'rA'rns ATE SCALE-GAGE FOR SETTING KNIVES, 81,0.

SPECIFIGATIGN forming part of Letters Patent No. 649,751, dated May 15,1900.

' Application filed October 28, 1899. Serial No. 735,067. (No model.)

To aZZ when it 711,021 concern.-

Be it known that I, CHARLES .I. QUINN, a citizen of the United States,residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inScale-Gages5 and I do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

My invention relates to an improved scalegage for setting the knives onmoldingmachines; and the object is to provide a simple, inexpensive, andconvenient device of this character whereby the knives may be quicklyand accurately adjusted and more particularly so when it is desired toduplicate a molding of certain dimensions.

To this end the invention consists in the particular construction andarrangement of the scale gage hereinafter more fully described, andparticularly pointed out in the claim.

In the accompanying drawings the same reference characters indicate thesame parts of the invention.

Figure 1 is a perspective View of my improved scale-gage. Fig. 2 is aplan View of the gage with a molding design laid off on it. Fig. 3 is asimilar view showing the manner of applying the gage to the cutter-headto set the knives. Fig. at is a detail view of apiece of molding formedby using my improved gage in connection with the knife 5 for cut ting orplaning said molding.

1 denotes the body or stock of the gage, which consists of any suitablematerial-such as hard wood, steel, or celluloid-having the surfacecoated with silicate to render it a proper receiver for designs, whichmay be temporarily drawn thereupon and afterward conveniently rubbed offor obliterated to make room for new temporary designs of molding inorder that the gage may be used indefinitely.

The face of the gage is provided with a series of graduated longitudinallines 3 and a series of graduated transverse lines 4, the two sets oflines forming acompound scale, upon which the design may be traced, asshown in Fig. 2.

One way of using the gage where a previous design is to beduplicated-say, for instance, the design for the molding shown in Fig.4- is as follows: A thin section of this molding is laid on the gage andthe design or outline thereof is then traced off on the gage, as shownin Fig. 2. The knife-blade 5 is then set in the head 6 of themolding-machine (not shown) and the gage adjusted to the head, with itsknee 2 in contact with the end of the head and its inner longitudinaledge 7 in contact with the longitudinal face of the head, as shown. Thecutting edge of the knife 5 is then adjusted to the outline design onthe gage, as shown in Fig. 3, and the bolt 8 is then screwed up torigidly secure the blade to the head. Another way is to lay off thewidth of the molding on the length of the gage by means of thetransverse scale 4, and the thickness and the depth of the cuts are laidoff on the width of the gage by means of the longitudinal lines 3, witha like result to that shown in Fig. 2. After the knives have beenproperly adjusted the design on the gage is rubbed off and it is againready for use, as before.

Having thus fully described my invention, whatI claim, and desire tosecure by Letters Patent of the United States, is-

A scale-gage for setting molding-machine knives, consisting of a plate 1provided with an integral lateral knee 2 projecting upwardly from theleft end of said plate 1; a series of graduated longitudinal permanentlines 3 and a series of graduated transverse permanent lines 4, said twosets of graduated permanent lines forming a permanent compound scale;and a coating of silicate covering said graduated longitudinal andtransverse lines form ing said permanent compound scale; sub--stantially as and for the purpose specified.

In testimony whereof I have hereunto set my hand in presence of twosubscribing wit-- nesses.

CHARLES J. QUINN.

Witnesses:

JosnPH I. WINsLow', T. Harman.

